Gravity->search for 800, float(or 4-bytes), search for unchanged value and repeat until the number of addresses decreases.
Jump height->search for 39, float(or 4-bytes), search for unchanged value and repeat until the number of addresses decreases.

Gravity->search for 800, float(or 4-bytes), search for unchanged value and repeat until the number of addresses decreases.
Jump height->search for 39, float(or 4-bytes), search for unchanged value and repeat until the number of addresses decreases.

jump height is set as read only so you must tick off the "writable checkbox"